Bromide paper : instructions for contact printing and enlarging (1896)
Just, E. A · Bradford : P. Lund, Humphries · leaf 37
the enlarging apparatus be set up horizontally, a mirror placed at an angle of 45° towards the vertical must be employed. Siemen's Horizontal Regenerative Lamp. — Siemen's horizontal regenerative flat-flame lamp (fig. 9.) possesses an open horizontal gas flame of about 60 candle power. It does not… … Fig. 9. The KlecSlric Light, with its enormously high intensity and its richness in chemical effedf in positive printing would be the ne plus ultra, if ist, it were not so expensive both in the installation and in its maintenance ; and 2nd, if it would work equally and steadily. With regard to the…
Photography
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
